WebPiece 1.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this free software for Mac is Comona Co., Ltd.
The latest version of WebPiece can be downloaded for Mac OS X 10.7 or later. Webpiece.pkg is the common file name to indicate this app's installer. The software is included in Internet & Network Tools. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The most popular version among the program users is 1.0.
From the developer:
WebPiece is a reduced function web browser to manipulate tiny and limited function web pages like time card apps or SPAM killer CGIs. WebPiece also provides separate cookie spaces for each web windows. This allows you to login to same site with different accounts concurrently. WebPiece remembers user id/password sets for each web windows.
You may want to check out more Mac applications, such as WebNative-Browser, WebCopier Mobile or SunriseBrowser, which might be related to WebPiece.